CN105458136B - The dissection type forging method and its mould of a kind of bucket tooth - Google Patents
The dissection type forging method and its mould of a kind of bucket tooth Download PDFInfo
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- CN105458136B CN105458136B CN201610032014.0A CN201610032014A CN105458136B CN 105458136 B CN105458136 B CN 105458136B CN 201610032014 A CN201610032014 A CN 201610032014A CN 105458136 B CN105458136 B CN 105458136B
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- bucket tooth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The dissection type forging method and its mould of a kind of bucket tooth, it is related to machine components processing, it is that whole bucket tooth is divided into two parts blank, matched moulds punch die will be carried out respectively in a mold after metal material heating after blank, forging and stamping turn into two bucket tooth blanks, two blanks are welded together, are finally heat-treated.Whole bucket tooth is divided into the method that two parts forge and press respectively, can be cut along the wide plane of symmetry cutting in longitudinal direction of bucket tooth, the narrow plane of symmetry cutting in longitudinal direction or perpendicular to major axis.It is an advantage of the invention that：Whole bucket tooth is divided into two parts shaping, and mold cavity is shallower, and forming surface is wider, and the abrasion of mould sideline is lighter in forging process, and mold repair is easy, production cycle length, and expense is low.Metal in forging process will not enter die gap, and forging can smoothly take out from mould, and production efficiency is high.
Description
Technical field
The present invention relates to machine components processing, more specifically, be related to a kind of bucket tooth dissection type forging method and its
Mould.
Background technology
Bucket tooth is the important component on excavator, similar to the tooth of people, belongs to consumable accessory.The processing technology of bucket tooth is general
There are casting or forging, the bucket tooth mass ratio of forging to cast, therefore, its use range is more and more extensive.Forging and molding refers to pair
Metal applies external force, metal is produced plastic deformation, changes the shape and size of blank, and improve its interior tissue and mechanical property
Can, the shaping of the blank or part of definite shape, size and performance is obtained, traditional bucket tooth forging technology substantially relies on people
What work was carried out, many deficiencies be present,
Slightly slipped up during worker's blowing, substandard products will be caused；Flank of tooth intermediate frequency is carried out after the heat treatment quenching and tempering of bucket tooth, technique is multiple
Miscellaneous, degree-of-difficulty factor is high, cycle length, and production efficiency is very low.
On July 7th, 2015, we applied for the patent of invention of " a kind of processing method of bucket tooth ", and number of patent application is
2015103915261, the invention proposes a kind of processing method of bucket tooth simple to operate, with short production cycle, production efficiency is high.Should
Method is as follows：
1st, choose after metal material after blank, heating, be put between the upper die and lower die on friction press, to upper mould and
Lower mould carries out matched moulds punch die and obtains bucket tooth blank；Then trimming is carried out to bucket tooth blank using punch press；
2nd, bucket tooth blank is put between the upper die and lower die on friction press, matched moulds punch die is carried out to upper die and lower die
Obtain bucket tooth molding part；
3rd, trimming, punching, correction are carried out to bucket tooth molding part with punch press；Last oil cooling, quenching.
The processing method for the bucket tooth that the invention provides, eliminates machining processes, directly forges finished product, by unitary mould
Ensure the processing of workpiece, it is with short production cycle, production efficiency is high.The hardness of obtained product is higher, and percent defective is lower.
In production practices, it has been found that above-mentioned patented method still has following deficiency in forging：1st, global formation
Mold cavity is deeper, and forming surface is narrower, and the abrasion of mould sideline is severe in forging process, it is easy to produces fatigue crack.Mould
Maintenance difficult, process-cycle length are costly.2nd, mould usage time is short, and often forging 100 or so needs to pull down mould, by two
Spot welding is to reduce the gap between mould again for the mould on side, and once gap is more than 0.3mm, and metal will enter in forging process
Die gap, forging is caused can not smoothly to be taken out from die cavity.
The content of the invention
In order to overcome mould produced problem in above-mentioned forging process, the present invention proposes a kind of dissection type forging of bucket tooth
Method and its mould.
The dissection type forging method of this bucket tooth, it is characterised in that whole bucket tooth is divided into two parts blank, after blank
Metal material heating after carry out matched moulds punch die respectively in a mold, forging and stamping turn into two bucket tooth blanks, by the welding of two blanks
Together, finally it is heat-treated.
The dissection type forging mold of this bucket tooth, is divided into two parts by bucket tooth, it is characterised in that the mould per part includes
The upper die and lower die being engaged, the inner chamber formed after upper die and lower die matched moulds are consistent with two parts shape of bucket tooth respectively.
Whole bucket tooth is divided into the method that two parts forge and press respectively, the wide plane of symmetry cutting in longitudinal direction that can be along bucket tooth, longitudinal direction
Narrow plane of symmetry cutting is cut perpendicular to major axis.
The dissection type forging method of this bucket tooth specifically includes following steps：
（1）Select metal material；
（2）Lower two metal forging blanks；
（3）By step（2）Two metal forging blanks heat respectively；
（4）By step（3）Two metal forging blanks after heating are respectively put between the upper die and lower die on forcing press,
Matched moulds forging and stamping are carried out to upper die and lower die, obtain two half of bucket tooth blanks；
（5）To still there is the two of residual temperature half of bucket tooth blanks to carry out trimming, punching, correction；
（6）By step（5）Two bucket tooth blank welding position finished edges, and be welded into an overall bucket tooth；
（7）By step（6）Bucket tooth heating after water cooling；Obtain the case hardness and depth of hardening zone of design requirement.
It is an advantage of the invention that：Whole bucket tooth is divided into two parts shaping, and mold cavity is shallower, and forming surface is wider, forging
During the abrasion of mould sideline it is lighter, mold repair is easy, and production cycle length, expense is low.Metal in forging process will not enter
Enter die gap, forging can smoothly take out from mould, and production efficiency is high.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is the front view of bucket tooth
Fig. 2 is the side view of bucket tooth
Fig. 3 is the upward view of bucket tooth
Fig. 4 is the upper mould figure of embodiment one
Fig. 5 is the lower mould figure of embodiment one
Fig. 6 is the weld seam figure of embodiment one
Fig. 7 is the upper mould figure of embodiment two
Fig. 8 is the lower mould figure of embodiment two
Fig. 9 is the weld seam figure of embodiment two
Figure 10 is the upper die and lower die installation diagram that embodiment three divides mould one
Figure 11 is the lower mould top view that embodiment three divides mould one
Figure 12 is the upper mould figure that embodiment three divides mould two
Figure 13 is the lower mould figure that embodiment three divides mould two
Figure 14 is the lower mould top view that embodiment three divides mould two
Figure 15 is the weld seam figure of embodiment three
Reference in figure：1st, upper mould, 2, lower mould, 3, weld seam, 4, guide pad, 5, guide groove, 6, flash gutters, 7, die cavity,
8th, screw, 9, forging block.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The dissection type forging method of this bucket tooth, preferable specific implementation comprise the following steps：（1）Select Steel material；（2）
Lower two steel blanks；（3）By step（2）Two steel billets after blank are heated to 1000 DEG C -1200 DEG C in intermediate frequency furnace respectively；
（4）By step（3）Middle residual temperature is respectively put on 2500t friction presses mould with in 1000 DEG C -1100 DEG C of two steel billets
Between mould, matched moulds is carried out to upper die and lower die, obtains two half of bucket tooth blanks；（5）Using 250t punch presses to residual temperature 960
DEG C -980 DEG C of two half of bucket tooth blanks carry out trimming, punching, correction respectively；（6）By step（5）Two bucket tooth blanks weldering
After connecing position difference finished edge, and it is welded as a bucket tooth；（7）By step（6）Bucket tooth be heated to 800 DEG C -860 DEG C after water
It is cold；Case hardness is 52HRC~58HRC, and quench hard layer depth≤15mm.
Fig. 1-3 is the product figure of the present invention, enumerates the embodiment of three cutting methods and corresponding mould below：
Embodiment one, cut along the narrow plane of symmetry in the longitudinal direction of bucket tooth.
In figs. 4-6, this mold, which includes circular upper mould 1 and lower mould 2, upper 1 liang of opposite side of mould, guide pad 4, lower 2 liang of mould
Opposite side has the guide groove 5 corresponding with guide pad, and the working face of upper die and lower die also has two flash gutters 6, and two of lower mould fly
There is the die cavity 7 consistent with half of bucket tooth between side groove 6, be fixed between two flash gutters of upper mould by screw 8 and forge block 9,
After two identical one side of something bucket tooth blanks are distinguished into finished edge in welding position after forging, a bucket tooth, joint-cutting 3 are welded as
In along the narrow plane of symmetry in the longitudinal direction of bucket tooth.
Embodiment two, cut along the wide plane of symmetry in the longitudinal direction of bucket tooth.
In figures 7-9, this mold, which includes circular upper mould 1 and lower mould 2, upper 1 liang of opposite side of mould, guide pad 4, lower 2 liang of mould
Opposite side has the guide groove 5 corresponding with guide pad, and the working face of upper die and lower die also has two flash gutters 6, and two of lower mould fly
There is the die cavity 7 consistent with half of bucket tooth between the groove of side, fixed between two flash gutters of upper mould by screw 8 and forge block 9, forging
After two identical one side of something bucket tooth blanks are distinguished into finished edge in welding position afterwards, a bucket tooth is welded as, joint-cutting 3 is located at edge
On the wide plane of symmetry in longitudinal direction of bucket tooth.
Embodiment three, the major axis perpendicular to bucket tooth are cut.
In Figure 10-15, this mold includes dividing mould one and divides mould two, divides the tooth tip portion of the forging cutting teeth of mould one
Point, dividing the root portions of the forging cutting teeth of mould two, divide mould one to include upper mould 1 and lower mould 2, upper 1 liang of opposite side of mould has guide pad 4,
Lower 2 liang of opposite side of mould have the guide groove 5 corresponding with guide pad, have on the working face of upper die and lower die consistent with bucket tooth crown
Die cavity 7；Mould two is divided also to include upper mould 1 and lower mould 2, the upper opposite side of mould two has guide pad 4, and the lower opposite side of mould two has relative with guide pad
The guide groove 5 answered, there is the die cavity 7 consistent with bucket tooth tooth root in the middle part of the working face of lower mould；The middle part of the working face of upper mould leads to
Cross screw 8 and be fixed with the forging block 9 that section is isosceles triangle, add the crown of bucket tooth and tooth root respectively in welding position after forging
After work groove, a bucket tooth is welded as, joint-cutting 3 is located normal in the plane of the major axis of bucket tooth.
Claims (1)
1. a kind of dissection type forging method of bucket tooth, whole bucket tooth is divided into two parts blank, the metal material after blank is added
Carry out matched moulds punch die after heat respectively in a mold, forging and stamping turn into two bucket tooth blanks, two blanks are welded together, most laggard
Row heat treatment；Whole bucket tooth is divided into the method that two parts forge and press respectively, major axis is perpendicular to and is cut；The dissection type of bucket tooth
Forging method specifically includes following steps：(1) Steel material is selected；(2) two metal forging blanks under；(3) by step (2) blank
Two metal forging blanks afterwards are heated to 1000 DEG C -1200 DEG C in intermediate frequency furnace respectively；(4) residual temperature in step (3) is existed
1000 DEG C -1100 DEG C of two steel billets are respectively put on 2500t friction presses between upper die and lower die, and upper die and lower die are entered
Row matched moulds, obtain two half of bucket tooth blanks；(5) using 250t punch presses to two half of bucket tooths of the residual temperature at 960 DEG C -980 DEG C
Blank carries out trimming, punching, correction respectively；(6) after two bucket tooth blank welding positions of step (5) being distinguished into finished edge,
And it is welded as a bucket tooth；(7) water cooling after the bucket tooth of step (6) being heated into 800 DEG C -860 DEG C；Case hardness be 52HRC~
58HRC, quench hard layer depth≤15mm；Mould per part includes the upper die and lower die that are engaged, institute after upper die and lower die matched moulds
The inner chamber of composition is consistent with two parts shape of bucket tooth respectively, it is characterised in that the major axis for being perpendicular to bucket tooth is cut, mould
Tool includes dividing mould one and divides mould two, divides the tip portions of the forging cutting teeth of mould one, divides the root portion of the forging cutting teeth of mould two
Point, divide mould one to include upper mould (1) and lower mould (2), the upper opposite side of mould (1) two has guide pad (4), and the lower opposite side of mould (2) two has and led
To the corresponding guide groove of block (5), there is the die cavity consistent with bucket tooth crown (7) on the working face of upper die and lower die；Divide mould
Two also include upper mould (1) and lower mould (2), and the upper opposite side of mould two has guide pad (4), and the lower opposite side of mould two has corresponding with guide pad lead
To groove (5), there is the die cavity consistent with bucket tooth tooth root (7) in the middle part of the working face of lower mould；Pass through in the middle part of the working face of upper mould
The fixed forging block (9) of screw (8), after bucket tooth is distinguished into finished edge in welding position after forging, is welded as a bucket tooth, joint-cutting
(3) it is located normal in the plane of the major axis of bucket tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032014.0A CN105458136B (en) | 2016-01-19 | 2016-01-19 | The dissection type forging method and its mould of a kind of bucket tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032014.0A CN105458136B (en) | 2016-01-19 | 2016-01-19 | The dissection type forging method and its mould of a kind of bucket tooth |
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| CN105458136A CN105458136A (en) | 2016-04-06 |
| CN105458136B true CN105458136B (en) | 2018-02-06 |
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| CN201610032014.0A Active CN105458136B (en) | 2016-01-19 | 2016-01-19 | The dissection type forging method and its mould of a kind of bucket tooth |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180516A (en) * | 2016-07-13 | 2016-12-07 | 江苏东顺新能源科技有限公司 | A kind of bucket tooth crown forging die |
| CN106270328B (en) * | 2016-08-23 | 2017-11-14 | 郑州机械研究所 | A kind of multidirectional controllable shunting forging forming method of excavator bucket teeth |
| CN112275982A (en) * | 2020-09-25 | 2021-01-29 | 郑州机械研究所有限公司 | Forging device and forging method |
| CN115430796A (en) * | 2022-08-29 | 2022-12-06 | 山东宏坤智能科技有限公司 | Bucket tooth blank making mold |
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| JP2000351073A (en) * | 1999-06-14 | 2000-12-19 | Toyota Motor Corp | Method and apparatus for regenerating contact tip for arc welding |
| CN101239629A (en) * | 2008-03-07 | 2008-08-13 | 陈忠明 | Method for producing guiding wheel |
| CN101424227A (en) * | 2008-12-24 | 2009-05-06 | 中国北车集团大连机车研究所有限公司 | Diesel engine composite piston skirt blank |
| CN104439990A (en) * | 2014-11-13 | 2015-03-25 | 湖南三特机械制造有限公司 | Machining technology for gear tooth blocks |
| CN105014316A (en) * | 2015-07-07 | 2015-11-04 | 湖南三特机械制造有限公司 | Processing method for bucket teeth |
| CN205324588U (en) * | 2016-01-19 | 2016-06-22 | 湖南三特机械制造有限公司 | Mould is forged to subdivision formula of bucket tooth |
-
2016
- 2016-01-19 CN CN201610032014.0A patent/CN105458136B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000351073A (en) * | 1999-06-14 | 2000-12-19 | Toyota Motor Corp | Method and apparatus for regenerating contact tip for arc welding |
| CN101239629A (en) * | 2008-03-07 | 2008-08-13 | 陈忠明 | Method for producing guiding wheel |
| CN101424227A (en) * | 2008-12-24 | 2009-05-06 | 中国北车集团大连机车研究所有限公司 | Diesel engine composite piston skirt blank |
| CN104439990A (en) * | 2014-11-13 | 2015-03-25 | 湖南三特机械制造有限公司 | Machining technology for gear tooth blocks |
| CN105014316A (en) * | 2015-07-07 | 2015-11-04 | 湖南三特机械制造有限公司 | Processing method for bucket teeth |
| CN205324588U (en) * | 2016-01-19 | 2016-06-22 | 湖南三特机械制造有限公司 | Mould is forged to subdivision formula of bucket tooth |
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| CN105458136A (en) | 2016-04-06 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Haixiong Inventor after: Qiu Baozhu Inventor before: Chen Ling Inventor before: Liu Haixiong |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Split forging method and die for bucket tooth Effective date of registration: 20200508 Granted publication date: 20180206 Pledgee: Changde Shande Financing Guarantee Co.,Ltd. Pledgor: HUNAN SANTER MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2020980002068 |
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Date of cancellation: 20210722 Granted publication date: 20180206 Pledgee: Changde Shande Financing Guarantee Co.,Ltd. Pledgor: HUNAN SANTER MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2020980002068 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Split Forging Method for Bucket Teeth and Its Mold Granted publication date: 20180206 Pledgee: Agricultural Bank of China Limited Taoyuan County Branch Pledgor: HUNAN SANTER MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2024980004051 |